Fehler beim compile von OScam (module cryptoworks)

+-------------------------------------------------------------------------------
| OSCam ver: 1.20-unstable_svn rev: 11397 target: x86_64-linux-gnu-ssl
| Tools:
| CROSS =
| CC = gcc
| Settings:
| CONF_DIR = /usr/local/etc
| CC_OPTS = -Os -ggdb -pipe -ffunction-sections -fdata-sections
| CC_WARN = -w
| CFLAGS = -DWITH_SSL=1 -DWITH_LIBCRYPTO=1
| LDFLAGS = -Wl,--gc-sections -DWITH_SSL=1 -DWITH_LIBCRYPTO=1 -lz -Wl,-rpath,/usr/lib
| LIBS = -lssl -lcrypto -lpthread -ldl -lrt
| UseFlags = USE_SSL=1 USE_LIBCRYPTO=1
| Config:
| Addons : WEBIF WEBIF_LIVELOG WEBIF_JQUERY WITH_SSL IRDETO_GUESSING CS_ANTICASC WITH_DEBUG MODULE_MONITOR WITH_LB C$
| Protocols: CAMD35 CAMD35_TCP CCCAM CCCSHARE
| Readers : NAGRA IRDETO CONAX CRYPTOWORKS VIACCESS VIDEOGUARD
| CardRdrs : PHOENIX
| Compiler : gcc (Debian 6.3.0-18) 6.3.0 20170516
| Config : build/x86_64-linux-gnu-ssl/config.mak
| Binary : ../archiv/oscam-svn11397-HOMESERVER-x86_64-webif-ssl
+-------------------------------------------------------------------------------
HOSTCC webif/pages_gen
GEN webif/pages.c
GEN Compressed 437480 template bytes into 177621 bytes. 259859 saved bytes (59.40%).
CC cscrypt/i_cbc.c
CC cscrypt/des.c
CC cscrypt/i_ecb.c
CC cscrypt/i_skey.c
CC cscrypt/md5.c
CC cscrypt/rc6.c
CC csctapi/atr.c
CC csctapi/icc_async.c
CC csctapi/io_serial.c
CC csctapi/protocol_t0.c
CC csctapi/protocol_t1.c
CC csctapi/ifd_phoenix.c
CC minilzo/minilzo.c
CC module-anticasc.c
CC module-camd35.c
CC module-cccam.c
CC module-cccshare.c
CC module-ird-guess.c
CC module-monitor.c
CC module-stat.c
CC module-webif-lib.c
CC module-webif-tpl.c
CC module-webif.c
CC webif/pages.c
CC reader-common.c
CC reader-conax.c
CC reader-cryptoworks.c
reader-cryptoworks.c:11:18: error: field ‘exp’ has incomplete type
BIGNUM exp;
^~~
reader-cryptoworks.c:12:18: error: field ‘ucpk’ has incomplete type
BIGNUM ucpk;
^~~~
Makefile:415: die Regel für Ziel „build/x86_64-linux-gnu-ssl/reader-cryptoworks.o“ scheiterte
make[1]: *** [build/x86_64-linux-gnu-ssl/reader-cryptoworks.o] Fehler 1
make[1]: *** Es wird auf noch nicht beendete Prozesse gewartet...
Makefile:367: die Regel für Ziel „all“ scheiterte
make: *** [all] Fehler 2